| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.slider.server.appmaster.model.appstate |
| |
| import groovy.util.logging.Slf4j |
| import org.apache.hadoop.yarn.api.records.Container |
| import org.apache.slider.server.appmaster.model.mock.BaseMockAppStateTest |
| import org.apache.slider.server.appmaster.model.mock.MockRoles |
| import org.apache.slider.server.appmaster.operations.AbstractRMOperation |
| import org.apache.slider.server.appmaster.state.AppState |
| import org.apache.slider.server.appmaster.state.ContainerAssignment |
| import org.apache.slider.server.appmaster.state.RoleInstance |
| import org.junit.Test |
| |
| @Slf4j |
| class TestMockAppStateFlexing extends BaseMockAppStateTest implements MockRoles { |
| |
| @Override |
| String getTestName() { |
| return "TestMockAppStateFlexing" |
| } |
| |
| @Test |
| public void testFlexDuringLaunchPhase() throws Throwable { |
| role0Status.desired = 1 |
| |
| List<AbstractRMOperation> ops = appState.reviewRequestAndReleaseNodes() |
| List<Container> allocations = engine.execute(ops) |
| List<ContainerAssignment> assignments = []; |
| List<AbstractRMOperation> releases = [] |
| appState.onContainersAllocated(allocations, assignments, releases) |
| assert assignments.size() == 1 |
| ContainerAssignment assigned = assignments[0] |
| Container target = assigned.container |
| RoleInstance ri = roleInstance(assigned) |
| |
| ops = appState.reviewRequestAndReleaseNodes() |
| assert ops.empty |
| |
| //now this is the start point. |
| appState.containerStartSubmitted(target, ri); |
| |
| ops = appState.reviewRequestAndReleaseNodes() |
| assert ops.empty |
| |
| RoleInstance ri2 = appState.innerOnNodeManagerContainerStarted(target.id) |
| } |
| |
| @Test |
| public void testFlexBeforeAllocationPhase() throws Throwable { |
| role0Status.desired = 1 |
| |
| List<AbstractRMOperation> ops = appState.reviewRequestAndReleaseNodes() |
| assert !ops.empty |
| List<AbstractRMOperation> ops2 = appState.reviewRequestAndReleaseNodes() |
| assert ops2.empty |
| } |
| |
| |
| @Test |
| public void testFlexDownTwice() throws Throwable { |
| int r0 = 6 |
| int r1 = 0 |
| int r2 = 0 |
| role0Status.desired = r0 |
| role1Status.desired = r1 |
| role2Status.desired = r2 |
| List<RoleInstance> instances = createAndStartNodes() |
| |
| int clusterSize = r0 + r1 + r2 |
| assert instances.size() == clusterSize |
| log.info("shrinking cluster") |
| r0 = 4 |
| role0Status.desired = r0 |
| List<AppState.NodeCompletionResult> completionResults = [] |
| instances = createStartAndStopNodes(completionResults) |
| assert instances.size() == 0 |
| // assert two nodes were released |
| assert completionResults.size() == 2 |
| |
| // no-op review |
| completionResults = [] |
| instances = createStartAndStopNodes(completionResults) |
| assert instances.size() == 0 |
| // assert two nodes were released |
| assert completionResults.size() == 0 |
| |
| |
| // now shrink again |
| role0Status.desired = r0 = 1 |
| completionResults = [] |
| instances = createStartAndStopNodes(completionResults) |
| assert instances.size() == 0 |
| // assert two nodes were released |
| assert completionResults.size() == 3 |
| |
| } |
| |
| |
| } |